Guitar Comedian- need name.

Could anyone tell me the name of a comedian who played the guitar the whole time he was telling his jokes?
He was on a couple weeks ago. Some of his jokes included something like:
"If you're a battery, you're either working, or you're dead."
and one that was like "I want to build a 40 000 piece puzzle that when youre finished it says GO OUTSIDE."
he was super funny. pretty young and looked like he wanted to laugh at his own jokes.
thanks.